Astawa, I Putu, 		Mertha Astawa, I Putu, AND 		Wiwiek Ary Susyarini, Ni Putu.
"EFFICIENCY IN THE PURCHASE OF FOOD AND BEVERAGES  IN OPERATION OF STAR HOTELS IN BALI" <em>International Journal of Applied Sciences in Tourism and Events</em> [Online], Volume 1 Number 1 (6 March 2017)